Results 61 to 70 of about 3,999 (200)
Learning from a Disastrous Megathrust Earthquake
Ten years of interdisciplinary studies since the disastrous Tohoku-oki earthquake have improved our knowledge of earthquake-cycle processes and hazard, but prediction of such events remains elusive.
Naoki Uchida, Roland B�rgmann
openaire +1 more source
Evolution of Scaled Energy During Earthquake Ruptures
Abstract Earthquake ruptures radiate seismic energy in complex ways, reflecting the interplay of fault heterogeneity and rupture dynamics. How the radiated energy evolves during rupture, and whether this evolution varies systematically with earthquake properties, remains poorly understood. Here we analyze more than 1,500 global earthquakes using moment‐
Binhao Wang, Heidi Houston
wiley +1 more source
Abstract A wide selection of linear and non‐linear dimensionality reduction techniques is evaluated on synthetic tsunami data that is the basis for tsunami hazard assessment and computational forecasting. The data were computed from earthquake rupture forecasts (ERFs) supplying initial generation conditions and a linear long‐wave Green's function ...
Eric L. Geist, Tom Parsons
wiley +1 more source
Abstract Low‐frequency earthquakes (LFEs) provide key constraints on slow earthquake processes but remain difficult to detect because of their low signal‐to‐noise ratios (SNR) and emergent onsets, particularly in offshore environments where seismic networks are sparse.
Yanhan Chen, Yoshihiro Ito
wiley +1 more source
Interseismic Coupling and Slow Slip Events on the Cascadia Megathrust
In this study, we model geodetic strain accumulation along the Cascadia subduction zone between 2007.0 and 2017.632 using position time series from 352 continuous GPS stations.
core +2 more sources
Slow slip events (SSEs) have been observed in spatial and temporal proximity to megathrust earthquakes in various subduction zones, including the 2014 Mw 7.3 Guerrero, Mexico earthquake which was preceded by a Mw 7.6 SSE.
Duo Li, Alice‐Agnes Gabriel
doaj +1 more source
Slow slip and tremor (SST) downdip of the seismogenic zones may trigger megathrust earthquakes by frequently transferring stress to seismogenic zones.
Naoki Nishiyama +2 more
doaj +1 more source
Quantifying the Role of 3D Fault Geometry Complexities on Slow and Fast Earthquakes
Abstract Traditional models of slow slip events (SSEs) oversimplify fault geometry, although imaging shows subduction faults are segmented and complex. We examine how fault interactions control slip behavior using 3D quasi‐dynamic simulations of two parallel faults with uniform rate‐weakening friction accelerated by hierarchical matrices.
J. Cheng +4 more
wiley +1 more source
Asthenosphere Flow Modulated by Megathrust Earthquake Cycles [PDF]
Abstract Subduction megathrusts develop the largest earthquakes, often close to large population centers. Understanding the dynamics of deformation at subduction zones is therefore important to better assess seismic hazards. Here I develop consistent earthquake cycle simulations that incorporate localized and distributed deformation ...
openaire +4 more sources
Abstract Fault‐slip reversals indicate transient stress changes and may illuminate earthquake preparation processes. Here we present high‐resolution observations of sub‐millimetric creep and slip reversals on the Altaquelle Fault, a Quaternary normal fault in the southern Vienna Basin, preceding a regionally significant intraplate earthquake sequence ...
I. Baroň +13 more
wiley +1 more source

